Arilus or Arillus: How To spell?

The word Arilus is misspelled against Arillus, a noun meaning "A exterior covering, forming a false coat or appendage to a seed, as the loose, transparent bag inclosing the seed or the white water lily. The mace of the nutmeg is also an aril."

Arillus has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings ari & us which should not be misspelled with single 'L'
Wrong Spelling:  ari-l-us 
Correct Spelling:  ari-ll-us 
Check more misspelled words of Arillus to spell it correct.